The Sweetwater Preserve features about thirteen miles of singletrack built by mountain bikers. A pristine piece of desert nestled between existing development, it is truly a gem and holds one of the densest collections of saguaro cactus in the Tucson area.
The singletrack begins to the right as you exit the parking lot. Stay right to enter a thick forest of saguaros. Look for a rare crested saguaro among them. At the top of a small pass, continue to the right on the "Black Rock" and "Sun Circle" loops. Hang on for a high speed blast through the Ocotillos on Black Rock, the longer of the loops.
After finishing the loops turn right to climb the semi-technical Lost Arrow Trail. At the next junction a left turn provides a more challenging option, Red Canyon Trail. Close the loop by descending the Wildflower Ridge Trail, enjoying birds eye views of the entire preserve.